From: Adrian Bunk <[EMAIL PROTECTED]>
Date: Wed, 24 Oct 2007 18:24:25 +0200
> The EXPORT_PER_CPU_SYMBOL(softnet_data) is no longer used.
>
> Signed-off-by: Adrian Bunk <[EMAIL PROTECTED]>
I wanted to apply this, but in validing the patch I noticed
what appears to be an omission in TCP ipv6.
It seems that NET_DMA support there is only half-cooked and
the following patch is needed (and thus there is a modular
use of softnet_data again).
Looking at Christopher Leech's original TCP I/O AT commit:
1a2449a87bb7606113b1aa1a9d3c3e78ef189a1c
this appears to just be an oversight.
If one of the current I/O AT folks can look this over and
confirm I'd appreciate it.
Thanks!
[TCP]: Add missing I/O AT code to ipv6 side.
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 32dc329..06fa4ba 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1732,6 +1732,8 @@ process:
if (!sock_owned_by_user(sk)) {
#ifdef CONFIG_NET_DMA
struct tcp_sock *tp = tcp_sk(sk);
+ if (!tp->ucopy.dma_chan && tp->ucopy.pinned_list)
+ tp->ucopy.dma_chan = get_softnet_dma();
if (tp->ucopy.dma_chan)
ret = tcp_v6_do_rcv(sk, skb);
else
-
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